Update rust (#14)

Reviewed-on: #14

src/app.rs

@@ -12,8 +12,6 @@ pub struct App {
     pub twilio_config: textsender_models::config::auxiliary::TwilioConfig,
 }
 
-// TODO: Change this to non-async at some point.
-// Will require changes in other libraries
 pub fn load_app() -> Result<App, std::io::Error> {
     use textsender_models::envy;
     let auth_url_env = envy::environment::get_env("AUTH_URL");